前言 微量元素硒在体内有多种生物功能,与线粒体的呼吸机能,微粒体的药物代谢,炎症,免疫,癌以及老化等有关。硒缺乏可使人体及动物产生重要疾病。近年认为硒是谷胱甘肽过氧化物酶的活性中心,并发现线粒体的稳定性、过氧化酯质的分解速度与内因性谷胱甘肽过氧化物酶正相关。因而可以说该酶是 Preface Selenium in the body has a variety of biological functions, and mitochondrial respiratory function, microsomal drug metabolism, inflammation, immunity, cancer and aging. Selenium deficiency can cause important diseases in humans and animals. Selenium is considered to be the active center of glutathione peroxidase in recent years, and found that the stability of mitochondria, the rate of decomposition of peroxyester is positively correlated with intrinsic glutathione peroxidase. So it can be said that the enzyme is